//char shape = 0;
//scanf("%c", &shape);
//int i = 0;
//int j = 0;
//for (i = 1; i <= 5; i++)
//{
//    for (j = 0; j < 5 - i; j++)
//    {
//        printf(" ");
//    }
//    for (j = 0; j < i; j++)
//    {
//        printf("%c ", shape);
//    }
//    printf("\n");
//}
//int a = 0, b = 0, c = 0;
//scanf("%4d%2d%2d", &a, &b, &c);
//printf("year=%d\nmonth=%02d\ndate=%02d\n", a, b, c);
//int a = 0, b = 0;
//scanf("a=%d,b=%d", &a, &b);
//int c;
//c = a;
//a = b;
//b = c;
//printf("a=%d,b=%d", a, b);
//int n = 0;
//scanf("%d", &n);
//int k = 0;
//int i = 0;
//for (i = 0; i < 4; i++)
//{
//    printf("%d", n % 10);
//    n /= 10;
//}
//int a, b;
//scanf("%d %d", &a, &b);
//int sum = a + b;
//int suum = sum % 10;
//if (sum < 100)
//{
//    printf("%d", sum);
//}
//else
//{
//    if ((sum / 10) % 10 != 0)
//    {
//        printf("%d", (sum / 10) % 10);
//    }
//    printf("%d", suum);
//}
//double n = 0;
//scanf("%lf", &n);
//int a = (int)n;
//printf("%d", a % 10);
//return 0;
//long age = 0;
//scanf("%ld", &age);
//printf("%ld", age * 31560000);
//return 0;
//long int second = 0;
//scanf("%ld", &second);
//int hour = second / 3600;
//int minutes = (second % 3600) / 60;
//int seconds = (second % 3600) % 60;
//printf("%d %d %d", hour, minutes, seconds);
//double chinese = 0;
//double math = 0;
//double english = 0;
//scanf("%lf %lf %lf", &chinese, &math, &english);
//double sum = chinese + math + english;
//double average = sum / 3.0;
//printf("%.2lf %.2lf", sum, average);
//double weight, height;
//scanf("%lf %lf", &weight, &height);
//double heightm = height / 100.0;
//double BMI = weight / (heightm * heightm);
//printf("%.2lf", BMI);
//int a, b, c;
//scanf("%d %d %d", &a, &b, &c);
//double primeter = a + b + c;
//double p = primeter / 2.0;
//double area = sqrt(p * (p - a) * (p - b) * (p - c));
//printf("circumference=%.2lf area=%.2lf", primeter, area);
//double n = 0;
//scanf("%lf", &n);
//printf("%.3lf", 4 * 3.1415926 * n * n * n / 3);
//return 0;
//printf("%c\n", (m + 32));
//getchar();
//int n, h, m;
//while (scanf("%d %d %d", &n, &h, &m) == 3)
//{
//
//    int drink = m / h;
//    if (m % h != 0)
//    {
//        drink++;
//    }
//    printf("%d", n - drink);
//}